Nippers.



, No. 723,356. I I I PATENTED MAR.-24, 1903,

W. J. BAYRER.

NIPPERS.

APPLICATION FILED 0GT.1, 1902.

31 ,HI 'W 1 H0 MODEL.

UNITED I STATES.

PATENT OFFICE.

WILLIAM J. BAYRER, OF PLANTSVILLE, CONNECTICUT.

NIPPERS.

SPECIFICATION forming part of Letters Patent No. 723,356, dated March24, 1903.

Application filed October 1. 1902'.

To all whom it may concern.

Be it known that I, WILLIAM J; BAYRER, a citizen of the UnitedStates,residing at Plantsville, in the countyof Hartford and State ofConnecticut, have invented certain new and useful Improvements inNip'pers, of which the following is a specification.

This invention relates to the construction of a joint for a nipper,plier, punch, or the like tool. I

The object of this invention is to provide a joint for such a tool whichis simple and cheap to manufacture and strong and durable in use. Toolsof this nature have been constructed with a boxjoint-,-that is, one parthaving a milled opening and the other part extending through theopening; but such a construction is expensive to manufacture. Thesetools have been constructed with a halved j0int-that is, each parthaving onehalf cut away and the two halved sections laid together andheld by a pivot. Such a construction is cheap to manufacture; but thetwisting strains when in use come upon the ends of the pivot and causethe joint to work loose, thus destroying the efficiency of the tool.This joint is particularly unserviceable for nippers with cutting-bladeson one side. Tools of this character have also been constructed withhalved sections that are held together by linksthat is, by two pivotsconnected by plates; but such a construction does not form a strongbox-joint.

The present invention resides in a tool having the levers halvedtogether, each being shaped like the other and formed by a simpledrop-forging process and held together between plates in such manner asto form a strong box-joint.

This invention is illustrated by the accompanying drawings, in which-Figure 1 shows a pair of wire-cutting pliers having the improved jointwith one of the side plates removed. Fig. 2 shows an edge view of thesepliers. Fig. 3 shows a pair of nippers having the improved joint. Fig. 4shows an edge View of the nippers. Fig. 5 shows a pair-of pincers thatembody the invention. Fig. 6 shows a belt-punch that embodies theinvention, and Fig. 7 shows another pair of nippers.

The levers of these tools may have handles Serial 110125578. mamas.

1 of any shape, and the jaws 2 may be formed to hold or cut wire, asshown in Fig. 1, to cut wire, as shown in Fig. 3, to hold wire, as shownin Fig. 5, or to punch leather or paper, as shown in Fig. 6. Theselevers, which are similarly shaped, are preferably drop-forged, and eachis reduced in thickness at the jointsection, so that when assembled theywill be halved together; A plate 3 is placed outside each of thesections of the two parts which are halved together. Each of theseplates, which correspond with each other, has a perforationthatregisters with the pivot-perforation through the lever parts, andthe pivot 4 extends through the level-parts and the plates and is headedover at its ends on the outside of the plates, so as to hold all ofthese parts together. The pivot may be shouldered at each end, so thatwhen the ends are headed over the plates will not bind the twointermediate parts together. The pivot-opening through the lever partsthat are halved together may be located at any desired position-that is,it may be in line with the opening between the jaws, as shown in Figs.1, 5, and 6, or it may be to one side of the line of opening between thejaws, as shown in Figs. 3 and 7. The levers hinge'on this singlepivot-pin t when the handles are opened and closed for working the jaws.Anotherpin 5 extends from one plate to the other. This pin is preferablyshouldered, so that when its ends are headed over the plates will beheldfast without bindingtheintermediatepartstogether. Thispin 5 may be,asillustratedin Fig. 1, passed from one plate to the other through theend of one of the handle parts. When arranged in this manner, the platesbecome fixed to one of the handle parts and the other handle part onlyswings on the pivot. In the form shown in Fig. 3 the plate-pin 5 islocated at one side, so as to pass through but one of the handle parts.In the form shownvin Fig; 5 the plateholding pin is arranged at thecenter between the ends of the handles, so that both handles are free tooscillate on the pivot-pin. In'this form the plates are not fixed toeither part. In the form shown in Fig. 6 the plate-pin is located nearthe center and the lever parts are slotted, so that the handles may beoscillated to open and close the jaws. In the form shown in Fig. 1 twoplate-holding pins 5 and 6 are used. In this case the plates are fixedto one of the lever parts. In the form shown in Fig. 7 two plate-pins 5and 7 are illustrated, slots being made in the lever parts for thepassage of these pins. In all cases there is but one pivot-pin, theother pin being simply to hold the plate in such manner as to form abox-joint over the halved parts. The plates are in no sense links, andthe plate-holding pins do not act as pivots. At least one plateholdingpin should be a considerable distance farther from the jaws than thepivot-pin. This construction allows the lever parts, with the handlesand jaws, to be made alike and to be formed to final shape by a simpledropforging process, and yet when these halved parts are put togetherand fastened by the plates and the pins, as illustrated, a strongbox-joint is formed which will prevent any twisting or straining of theparts when they as are used to grip or cut a piece of metal at one sideof the middle of the jaws,

I claim as my invention A nipper consisting of two'levers each having ahandle and an integral jaw, the said le- 25 plate on each side, and apin located farther 30 from the jaws than the pivot-pin and passingthrough the plate on each side for holding the plates together,substantially as specified.

WILLIAM J. BAYRER.

Witnesses:

H. R. WILLIAMS, ETHEL M. LOWE.

